It is said that "all diseases can be cured by one package". Just buy a bag when you are unhappy. Practical+good-looking, making backpacks an indispensable item for many people to go out.

shoulder bag, shoulder bag, messenger bag, handbag ... what style of backpack do you like best?

It should be noted that overweight backpacks combined with wrong backpack and bag-carrying posture will easily lead to fatigue, sore shoulders and backache, while heavy ones will damage shoulder muscles and even form high and low shoulders. Life Times interviews experts to analyze the advantages and disadvantages of different backpack postures and teach you how to carry a backpack scientifically.

Interviewed expert

Lin Dingkun, director of the Department of Orthopaedics, Guangdong Provincial Hospital of Traditional Chinese Medicine

Su Junlong, clinical tutor of the Department of Rehabilitation Science, Hong Kong Polytechnic University

Zhang Hanjun, associate professor of orthopaedics, the Fourth Affiliated Hospital of Harbin Medical University

How do different backpack postures affect health?

Carry the backpack correctly

Adjust the shoulder strap to make the backpack close to the back, and fasten the chest strap and belt, so that when carrying the backpack, the pressure is evenly transmitted to the spine and back muscles through the two shoulder straps, which is the most friendly posture for the spine.

Crossbody bag

Crossbody bag can spread the weight on the shoulder to the back and waist, which is more labor-saving than one-shoulder backpack, thus reducing the possibility of scoliosis. The shoulder strap of the crossbody bag should be as short as possible, and the bag should be placed on the abdomen, not on the sides.

when there are many things and the backpack takes a long time, the crossbody bag is not as good as the backpack.

The shoulder strap of the shoulder bag is too long

The shoulder strap of the shoulder bag is too long, which will make the backpack fall backwards, and the shoulder needs more strength to ensure the stability of the backpack, which will compress the trapezius muscle; If you don't buckle the chest strap and belt to share the weight, it will easily increase the burden on the spine and back muscles.

One-shoulder backpack

All the weight of the bag falls on the shoulder strap. In order to counter the weight of the bag and prevent the shoulder strap from slipping off, the shoulder joint and spine may be in an abnormal posture, which may lead to high and low shoulders, hunchback and scoliosis in the long run.

elbow hanging bag

People with stronger biceps brachii can bear greater pressure and can easily cope with this backpack posture. However, the pressure of the bag is concentrated in the elbow joint, which will compress the blood vessels and affect the blood circulation of the arm; In addition, it is also possible to form high and low shoulders.

vertical hand carrying

wrist and arm are kept in the same straight line, and the probability of high and low shoulders is low. However, the pressure of the bag is concentrated on the finger joints, and it is easy to be tired to keep this posture for a long time.

The main reason why backpack posture will affect health is that the backpack is too heavy. In order to bear this extra weight, muscles and bones have to pay a heavy price.

Neck soreness

Overweight backpacks will make the neck unconsciously lean to one side, while stretching and contracting muscles, which will easily lead to pain.

high and low shoulders

Only one shoulder is used for the backpack. In order to counter the weight of the bag and prevent the shoulder strap from slipping, the shoulder of the backpack will unconsciously rise, which will form high and low shoulders for a long time.

Scoliosis and hunchback

Ann Wilmarth, director of the Department of Physiotherapy at Northeastern University in Boston, USA, pointed out that if you carry a bag of about 5 kilograms on your left shoulder, the muscles on the right side of the spine will generate 15-2 kilograms of strength to maintain your balance. This imbalance in muscle force will pull the spine and cause bending, resulting in strain and inflammation.

Arm numbness

Wrist in the same posture for a long time or excessive use of wrist force will lead to carpal tunnel syndrome due to repeated chronic fatigue injury, so it is best to avoid the posture of holding a bag or holding a bag frequently.

Arthritis

Li Zijian, deputy chief physician of Peking University Third Hospital, reminded that heavy load is a high risk factor for knee joint wear. The heavier the backpack, the greater the pressure on the knee joint, which is easy to cause joint problems and eventually lead to joint inflammation.

how can a backpack be both practical and healthy? Orthopedic experts gave several suggestions.

Lighter backpack

The International Society of Spinal Neurology recommends that the weight of shoulder bag should be less than 1% of body weight, and that of shoulder bag should be less than 5% of body weight. For example, a person weighing 6 kilograms should not carry more than 6 kilograms of backpack and 3 kilograms of shoulder bag.

Clean up once a day

Donna Smiling, a member of American Professional Life Consulting Association, suggests that you should spend one minute checking and cleaning your backpack before going to bed every day, and take out some unnecessary things, such as invoices, some pens, change or unfinished mineral water, which will make your bag heavier and heavier unconsciously.

Choose the right material

If you have a lot of things, you'd better choose a bag made of nylon, cotton and canvas, instead of a leather bag with a heavy weight.

Things should be packed separately

Carrying a bag weighing 3 kg in each hand can relieve the pressure on the back and neck more effectively than carrying a bag weighing 6 kg in a single hand. So when there are too many things, it is best to divide them into two bags.

change your shoulder every 1 minutes

Dr. Cynthia Vaughan, a spokesperson for the American Massage Association, suggested that it is best to change the bag to the other shoulder or the other hand every 1 minutes, which can effectively prevent cervical and spinal strain.

Rest when you are tired

If you feel pain in your shoulder and back, you'd better stop and stretch for 1 minute immediately. If the situation doesn't allow, take the bag off your shoulder and put it under your arm for a few minutes.

Of course, if you already have sore shoulders and backache, you'd better consult a doctor.

finally, let's do an interesting personality test: which of the following five backpacking methods do you use most often?